Min Jin Sun

US Patent:

7614231, Nov 10, 2009

Filed:

Apr 9, 2007

Appl. No.:

11/784625

Inventors:

Marc Christian Allain - Plymouth MI, US
Min Sun - Troy MI, US

Assignee:

Detroit Diesel Corporation - Detroit MI

International Classification:

F02B 33/44
F02D 23/00
F02M 25/07
G01M 15/00

US Classification:

606051, 60600, 60601, 60602, 606052, 701102, 701108, 7311703, 7311801, 7311802

Abstract:

A method to estimate real-time exhaust pressure in a compression ignition engine with variable geometry turbocharger and an EGR by adding the turbocharger RPM, the engine RPM, EGR value position and intake manifold pressure to determine a final turbocharger turbine inlet pressure to control NOx emissions.

US Patent:

7631552, Dec 15, 2009

Filed:

Dec 17, 2007

Appl. No.:

11/957702

Inventors:

Donald E. Keski-Hynnila - Canton MI, US
Jeffery S. Hawkins - Farmington Hills MI, US
Harald Wedler - Neuhausen, DE
Reinhard Pfundt - Ansbach, DE
Frank S. Groer - West Bloomfield MI, US
Mark A. Zurawski - Northville MI, US
Dennis J. Grace - West Bloomfield MI, US
Heather A. Staley - Garden City MI, US
Min Sun - Troy MI, US
Jason T. Barton - Canton MI, US
Zhiping Han - La Salle, CA
Martin Fritz - Rudersberg, DE

Assignee:

Detroit Diesel Corporation - Detroit MI

International Classification:

G01M 15/04

US Classification:

7311474

Abstract:

In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality. The method comprises determining a measured operating condition of a first component from sensor data signals indicative of first component functionality, determining a measured operating condition of a second component from sensor data signals indicative of second component functionality, comparing the measured condition of the first component to the measured operating condition of the second component to determine whether sensor readings from the first component are indicative of a component operating within a normal range but indicative of impending sensor or component failure, logging an indication of an impending sensor or component failure as a fault in MPU memory if it occurs for a predetermined period of time and for more than a predetermined number of times and drive cycles, and activating a warning alert to an operator and initiating remedial actions responsive to the indication of impending component or sensor failure. The data logged includes time of fault, type of fault, number of occurrences of the fault, number of drive cycles where the fault occurred and distance traveled with the fault logged.

US Patent:

7650781, Jan 26, 2010

Filed:

Dec 19, 2007

Appl. No.:

11/959838

Inventors:

Donald E. Keski-Hynnila - Canton MI, US
Jeffery S. Hawkins - Farmington Hills MI, US
Harald Wedler - Neuhausen, DE
Reinhard Pfundt - Ansbach, DE
Frank S. Groer - West Bloomfield MI, US
Mark A. Zurawski - Northville MI, US
Amr M. Radwan - Canton MI, US
Peter Zagone - Huntington MI, US
Kevin D. Sisken - Saline MI, US
Matthew T. Baird - Canton MI, US
Min Sun - Troy MI, US
Dennis J. Grace - West Bloomfield MI, US
Heather A. Staley - Garden City MI, US

Assignee:

Detroit Diesel Corporation - Detroit MI

International Classification:

G01M 15/10

US Classification:

7311476, 7311475

Abstract:

A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.

US Patent:

8472699, Jun 25, 2013

Filed:

Nov 21, 2007

Appl. No.:

11/944017

Inventors:

Andrew Y. Ng - Stanford CA, US
Ashutosh Saxena - Redwood City CA, US
Sung Hwan Chung - San Jose CA, US
Min Sun - Princeton NJ, US

Assignee:

Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

G06K 9/00

US Classification:

382154, 382106, 348 42

Abstract:

Three-dimensional image data is generated. According to an example embodiment, three-dimensional depth information is estimated from a still image. A set of monocular images and their corresponding ground-truth depth maps are used to determine a relationship between monocular image features and the depth of image points. For different points in a particular image, the determined relationship is used together with local and global image features including monocular cues to determine relative depths of the points.

US Patent:

8510024, Aug 13, 2013

Filed:

Sep 9, 2010

Appl. No.:

12/878357

Inventors:

Kevin Gady - Ypsilanti MI, US
Min Sun - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06G 7/70

US Classification:

701114, 60277

Abstract:

A vehicle includes an engine, an exhaust system having a selective catalytic reduction (SCR) device, a NOx sensor, and first and second controllers. The first controller compares estimated NOx levels from an SCR model to actual levels from the sensor, and updates the SCR model when the values differ from each other. The second controller evaluates an updating frequency of the SCR model, and executes a control action when the frequency is excessive. A control system includes the sensor and two controllers noted above. A method of diagnosing the exhaust system includes measuring NOx gasses downstream of the SCR device, updating the SCR model when the deviation is present between estimated and measured NOx levels, comparing estimated ammonia (NH) storage levels from the SCR model to modeled or estimated upper and lower NHstorage level boundaries to determine excessive updating, and setting a diagnostic code when excessive updating is present.

US Patent:

20080155970, Jul 3, 2008

Filed:

Nov 13, 2007

Appl. No.:

11/939000

Inventors:

Donald E. Keski-Hynnila - Canton MI, US
Jeffery S. Hawkins - Farmington Hills MI, US
Harald Wedler - Neuhausen, DE
Reinhard Pfundt - Ansbach, DE
Frank S. Groer - Stuttgard, DE
Mark A. Zurawski - Northville MI, US
Amr M. Radwan - Canton MI, US
Peter Zagone - Huntington MI, US
Kevin D. Sisken - Saline MI, US
Matthew T. Baird - Canton MI, US
Min Sun - Troy MI, US
Dennis J. Grace - West Bloomfield MI, US
Heather A. Staley - Garden City MI, US

Assignee:

Detroit Diesel Corporation - Detroit MI

International Classification:

G01M 15/10
F01N 3/00

US Classification:

60295, 60297, 60285

Abstract:

A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.

US Patent:

7281518, Oct 16, 2007

Filed:

Mar 15, 2007

Appl. No.:

11/724509

Inventors:

Marc Christian Allain - Plymouth MI, US
Min Sun - Troy MI, US

Assignee:

Detroit Diesel Corporation - Detroit MI

International Classification:

F02M 1/00
B60T 7/12

US Classification:

123434, 12356814, 123480, 123382, 701103

Abstract:

Method for controlling and improving the transient emissions of an electronically controlled heavy duty diesel engine having an ECM with memory, a turbocharger and an EGR system.

US Patent:

20190178187, Jun 13, 2019

Filed:

Dec 12, 2017

Appl. No.:

15/838860

Inventors:

- Detroit MI, US
Sarah Funk - Canton MI, US
David E. Edwards - Rochester Hills MI, US
Min Sun - Troy MI, US
Gongshin Qi - Troy MI, US

International Classification:

F02D 41/14
F01N 11/00
F01N 3/20
F01N 3/10
B01D 53/94

Abstract:

An emissions control system for treating exhaust gas containing NOemissions from an internal combustion engine comprises a selective catalytic reduction (SCR) device that stores reductant that reacts with the NOemissions, a reductant supply system configured to inject the reductant according to a reductant storage model; NOmodule(s) configured to generate an NOconcentration signal indicating an NOconcentration, temperature module(s) configured to generate a temperature signal indicating an SCR temperature of the SCR device, and a control module operably connected to the reductant supply system, the NOmodule, and the temperature module. The control module is configured to determine an amount of the reductant that is parasitically oxidized based on the NOconcentration signal and the temperature signal, and to determine a correction factor based on the amount of parasitically oxidized reductant to modify the reductant storage model.